Run: 2026-03-18-01KM09EPNPY0Q8MRHWTJ1SGW0R

Run Details

Duration:
788ms
Cost:
$0.000355
Provider:
OpenAI

Evaluation summary

Score Evaluator
Details Link
97.24% Matches word count (details)

Model input

User/Human
Please write the opening scene of a murder mystery where each sentence has exactly 5 words. Please make sure that each sentence has the same length. Only return the opening itself.

Model response

AI
Fog swallowed the manor tonight. Candlelight trembled behind curtained windows. Detective Vale climbed the steps. A scream had already ended. Inside, silence pressed like wet velvet. The body lay beside roses. Blood traced a single question. Everyone present hid something deadly.
created_at"2026-03-18T10:56:52.419Z" 3/18/2026, 10:56:52 AM
model"openai/gpt-5.4-mini-20260317"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency410
moderation_latency(null)
generation_time692
tokens_prompt46
tokens_completion79
native_tokens_prompt41
native_tokens_completion72
native_tokens_completion_images0
native_tokens_reasoning0
native_tokens_cached0
num_media_prompt(null)
num_input_audio_prompt(null)
num_media_completion0
num_search_results(null)
origin"https://ncbench.com/"
is_byokfalse
finish_reason"stop"
native_finish_reason"completed"
usage0.00035475
router(null)
provider_responses
0
endpoint_id"9ee065b2-3d1c-43bc-bdd7-28af3b148282"
id"resp_096a57f03adec07b0169ba84f479d88197b32833eae0f1ca41"
is_byokfalse
latency208
model_permaslug"openai/gpt-5.4-mini-20260317"
provider_name"OpenAI"
status200
user_agent"langchainjs-openai/1.0.0 ((node/v24.14.0; linux; x64))"
http_referer(null)
api_type"completions"
id"gen-1773831412-VISJRRjQa6gxvVMRF1TE"
upstream_id"resp_096a57f03adec07b0169ba84f479d88197b32833eae0f1ca41"
total_cost0.00035475
cache_discount(null)
upstream_inference_cost0
provider_name"OpenAI"

Evaluation details

Result Evaluator Details Meta Data
97.24% Matches word count n/a
neededCleanfalse
sentences8
wordCounts
05
15
25
35
46
55
65
75